Question

a perpendicular bisector of a segment is a line, segment, or ray that is perpendicular to the segment at its midpoint. 9. circle the drawing that shows the perpendicular bisector of a segment. problem 3 constructing the perpendicular bisector got it? draw $overline{st}$. construct its perpendicular bisector. 10. error analysis a students construction of the perpendicular bisector of $overline{st}$ is shown below. describe the students error.

Explanation:

For question 9, a perpendicular bisector of a segment is perpendicular to the segment at its mid - point. The first drawing shows a line perpendicular to segment AB at its mid - point. For question 10, without seeing the full construction steps, if the constructed line is not perpendicular to ST at the mid - point of ST, that would be the error.

Answer:

1. The first drawing (where a line EF is perpendicular to segment AB at what appears to be the mid - point of AB).
2. Without seeing the full construction details, if the constructed line is not perpendicular to ST at the mid - point of ST, that is the error.